Christmas Weather for Northern Illinois:   Statistics for Chicago and Rockford

 

Chicago:
The following statistics comprises 141 years of data, however snowfall data began in 1885, so it is composed of 128 years of data. Data collection began at the University of Chicago, then at Midway, and currently at O'Hare which is now the official station for Chicago. 

Christmas high temperatures
Frequency distribution of high temperatures for Chicago. This dataset shows that the most frequent range of high temperatures on Christmas is in between 30 and 39 degrees. The normal high for Christmas at Chicago is 32 degrees, which falls in the most frequent range. The highest temperature recorded on Christmas is 64 degrees set in 1982.  The coldest high temperature on Christmas is -5 degrees which occurred in 1983.  In 2012, the high temperature was 33 degrees. 

Chicago Christmas low temperatures
Frequency distribution of low temperatures for Chicago. This dataset shows that the most frequent range of low temperatures on Christmas is in between 20 and 29 degrees. The normal low temperature on Christmas in Chicago is 18 degrees. The lowest temperature recorded on Christmas is -17 degrees which occurred in 1983. The highest low temperature for Christmas was 46 degrees in 1936. In 2012, the low temperature was 25 degrees.

Graph of precipitation on Christmas Day
Frequency distribution of precipitation for Chicago. This dataset shows that the most frequent amount of precipitation recorded on Christmas is 0.00”, which accounts for 38% of the days in the dataset. The next most frequent range is 0.02” to 0.25". The highest amount of precipitation on Christmas occurred in 1909 and 1950 when 0.50” of precipitation fell. There has never been an instance where over an inch of precipitation fell on Christmas. In 2012, 0.01" of precipitation fell.

Graph of snow on Christmas Day
 
Frequency distribution of snowfall for Chicago. This dataset shows that the most frequent amount of snowfall recorded on Christmas is 0.0”, which accounts for 45% of the days in the dataset. The next most frequent range is a Trace  through 0.9". The highest amount of snowfall recorded on Christmas occurred in 1950 when 5.1” of snow fell. In 2012, 0.1" of snow fell. 

 

ADDITIONAL CHRISTMAS CLIMATE DATA     ( * MEANS LAST OCCURRENCE)

MAX TEMP
WARMEST

MIN TEMP
WARMEST
PCPN
WETTEST
SNOW
MOST
64
1982
46
1936
0.50
* 1950
5.1
1950
56
* 1936
42
* 1940
0.47
1982
5.0
1909
55
1971
36
1982
0.46
2009
4.3
1933
52
* 1994
35
* 1957
0.38
1957
4.1
1951
50
* 1940
34
* 1973
0.35
* 1973
3.9
1935
49
1932
33
* 2005
0.34
* 1965
47
1889
32
* 1979
0.32
1951
46
* 1946
31
* 1954
0.28
1933
45
* 2011
30
* 2006
0.26
1903
44
* 1973
29
* 2011
0.22
1882
 
MAX TEMP
COLDEST
MIN TEMP
COLDEST
PCPN
DRIEST
SNOW
LEAST
-5
1983
-17
1983
0.00
* 2011
0.0
* 2011
2
1985
-11
1985
T
*2006
T
* 2006
6
1924
-8
1980
0.01
* 2012
0.1
* 2012
9
1996
-7
2000
0.02
* 2004
0.2
* 2001
10
* 1902
-6
1924
0.03
* 2005
0.3
* 2004
15
* 1977
-3
1984
0.04
* 1944
16
1914
-2
* 1935
0.05
* 1979
17
* 2000
-1
* 1990
0.07
1940
18
* 1993
0
 *2008 
0.08
2002
19
* 2004
1
* 1996
0.09
* 1967

 

Updated 12/20/2013 ACS


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